Formula
US gpm to m³/s conversion formula
Use this relationship for a direct conversion:
Worked example
2 US gpm = 0.0001261804 m³/s.
Unit conversion does not account for compressibility, pressure, or temperature effects on actual fluid volume.
Volume Flow Rate conversion
1 us gallon per minute (US gpm) equals 0.000063090196 cubic meter per second (m³/s). Enter any value below to convert from US gpm to m³/s.
Enter a value and choose units. Results update instantly.
1 US gpm = 0.0000630902 m³/s
| Unit | Value |
|---|---|
| Cubic meter per second m³/s | 0.0000630902 |
| Cubic meter per hour m³/h | 0.227124707 |
| Liter per second L/s | 0.0630901964 |
| Liter per minute L/min | 3.785411784 |
| US gallon per minute US gpm | 1 |
| Imperial gallon per minute imp gpm | 0.8326741846 |
| Cubic foot per minute cfm | 0.1336805556 |
Formula
Use this relationship for a direct conversion:
2 US gpm = 0.0001261804 m³/s.
Unit conversion does not account for compressibility, pressure, or temperature effects on actual fluid volume.
Quick reference
| US gallon per minute (US gpm) | Cubic meter per second (m³/s) |
|---|---|
| 0.01 | 0.0000006309 |
| 0.1 | 0.000006309 |
| 1 | 0.0000630902 |
| 2 | 0.0001261804 |
| 5 | 0.000315451 |
| 10 | 0.000630902 |
| 25 | 0.0015772549 |
| 50 | 0.0031545098 |
| 100 | 0.0063090196 |
| 1,000 | 0.0630901964 |
From unit
One US liquid gallon per minute.
Symbol: US gpm
To unit
The coherent SI volumetric flow unit.
Symbol: m³/s
Keep converting
Source
Definitions are checked against NIST SP 811 and exact volume definitions. Calculations use full internal precision before display rounding.
View the complete volume flow rate converterQuestions
Use the formula m³/s = US gpm x 0.000063090196. 1 us gallon per minute (US gpm) equals 0.000063090196 cubic meter per second (m³/s).
Both unit definitions use exact factors. Only the displayed decimal may be rounded.